Worksheet 741 · Skill 6
Course to steer
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You are at 286°T, 1.5 nm from Gannet Rock daybeacon, bound for Bell buoy "HS". Your speed through the water is 7.0 kn. The current sets 008°T at 2.3 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 110°T, 1.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 6.9 kn. The current sets 012°T at 0.8 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 043°T, 3.2 nm from Gannet Rock daybeacon, bound for Green can "3". Your speed through the water is 7.9 kn. The current sets 125°T at 1.5 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 247°T, 2.1 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.9 kn. The current sets 285°T at 1.3 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 206°T, 1.8 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 9.9 kn. The current sets 218°T at 1.3 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 297°T, 4.5 nm from Tern Island tower, bound for Green can "1". Your speed through the water is 11.4 kn. The current sets 107°T at 0.8 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 156°T, 2.7 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.4 kn. The current sets 299°T at 2.0 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
You are at 283°T, 2.9 nm from Tern Island tower, bound for Green can "3". Your speed through the water is 6.0 kn. The current sets 189°T at 1.7 kn.
Find the true course to steer that keeps you on the straight track to the buoy, your speed over the ground, and how many minutes it will take.
Tolerance: 3° (the track is measured on the chart), 0.3 kn and 3 minutes (or 5 %).
Course to steer: ________ °T Speed over the ground: ________ kn Time to the mark: ________ min
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Course to steer: 059 °T Speed over the ground: 8.6 kn Time to the mark: 35 min | No. 741001 (worked solution) |
| 2 | Course to steer: 240 °T Speed over the ground: 6.4 kn Time to the mark: 55 min | No. 741002 (worked solution) |
| 3 | Course to steer: 264 °T Speed over the ground: 6.8 kn Time to the mark: 51 min | No. 741003 (worked solution) |
| 4 | Course to steer: 210 °T Speed over the ground: 12.3 kn Time to the mark: 14 min | No. 741004 (worked solution) |
| 5 | Course to steer: 245 °T Speed over the ground: 11.1 kn Time to the mark: 17 min | No. 741005 (worked solution) |
| 6 | Course to steer: 179 °T Speed over the ground: 11.7 kn Time to the mark: 27 min | No. 741006 (worked solution) |
| 7 | Course to steer: 284 °T Speed over the ground: 8.3 kn Time to the mark: 21 min | No. 741007 (worked solution) |
| 8 | Course to steer: 144 °T Speed over the ground: 7.3 kn Time to the mark: 21 min | No. 741008 (worked solution) |